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Published on: February 26, 2013
Atrial fibrillation independently prolongs hospital stay after coronary artery bypass surgery
1Division of Cardiology, St Luke's-Roosevelt Hospital Center and Columbia University College of Physicians and Surgeons, New York, New York 10025, USA.
Insights
Postoperative atrial fibrillation (AF) significantly lengthens hospital stays for patients undergoing coronary artery bypass surgery (CABG). This increased length of stay is independent of other risk factors, highlighting the importance of AF prevention.
Area of Science:
- Cardiology
- Thoracic Surgery
- Health Services Research
Background:
- Atrial fibrillation (AF) is a common complication following coronary artery bypass surgery (CABG).
- Understanding factors influencing postoperative length of stay (LOS) is crucial for optimizing patient care and resource allocation.
Purpose of the Study:
- To investigate whether atrial fibrillation (AF) independently prolongs the postoperative length of stay (LOS) in patients undergoing coronary artery bypass surgery (CABG).
Main Methods:
- A cohort of consecutive patients undergoing elective CABG was analyzed.
- Baseline clinical data, postoperative events including AF development, and LOS were recorded.
- Statistical analysis was performed to identify predictors of LOS and the independent effect of AF.
Main Results:
- Of 216 patients, 25% developed postoperative AF.
- Patients with AF had a significantly longer LOS (15.1 days) compared to those without AF (10.0 days).
- After adjusting for other variables, AF independently increased LOS by 3.2 days (p < 0.001).
Conclusions:
- Atrial fibrillation independently prolongs hospital stay after CABG.
- Preventing AF in CABG patients may lead to substantial reductions in healthcare resource utilization.
- Identifying at-risk patients and implementing effective AF prevention strategies are key to improving outcomes.
Background:
Atrial fibrillation (AF) is the most common arrhythmia occurring in patients after coronary artery bypass surgery (CABG).
Hypothesis:
The purpose of this study was to determine whether AF independently prolonged postoperative length of stay (LOS).
Methods:
Consecutive patients undergoing elective CABG were identified. Baseline clinical variables, postoperative course including the development of AF, and postoperative LOS were recorded.
Results:
In all, 216 patients (aged 61 +/- 13 years) were examined. Postoperative LOS was 11.3 +/- 6.4 days (median LOS = 9 days). Fifty-five patients (25%) developed AF. Among 16 variables examined, the univariate predictors of LOS included age (p < 0.001), preoperative left ventricular ejection fraction (p < 0.001), absence of a prior smoking history (p < 0.05), bypass limited to venous conduits (p < 0.001), postoperative AF (p < 0.001), and the occurrence of a postoperative event (p < 0.001). Length of stay for patients who developed AF was significantly longer than that for patients who did not (15.1 +/- 9.0 vs. 10.0 +/- 4.6 days, p < 0.001). After adjusting for other significant variables, the occurrence of AF after CABG independently prolonged LOS: patients who developed AF stayed 3.2 +/- 1.7 days longer than patients who did not (p < 0.001).
Conclusions:
Atrial fibrillation lengthens hospital stay after CABG, and its effect is independent of other important variables. Identification of patients who are at risk for AF and successful treatment to prevent AF will likely contribute to major reductions in consumption of health care resources in patients with CABG.
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